Electropneumatic brake mechanism.



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1. R. SLO/m, H. F. PERRY & x. v. GOODMAN.

ELECTROPNEUMATIC BRAKE MECHANISM.

APPLICATIN fILED APR. I. 1918.

Pmmed ont. zz, 1916'. j bHEETS-SHEETI .R. SLOAN, H. F. PERRY L l. V. GOODMANv ELECTROPNEUMAUC BRAKE MECHANISM.

APPLICATION FILED APR I. 1918. LSSQ, Patnted Oct. 22, 1918,

3 SHEETS-SHEET 2.

I. R. SLOAN, H. F. PERRY (Il l. V.- GOODMAN.

ELECTROPNEUMATIC BRAKE MECHANISM.

APPLICATION FILED AFR. I. 1918.

Pntened OCI. Q2, 1918,

SSHEEIS-SHEET 3.

Idesired by the coiiibiiiiition JAMES RICHARD SLOAN, HDVRD E'. PERRY, AND IRA V. GOODMAN, 0F LTOTA, PENNSYLVNIA.

ELECTROPNEUMTIC BRAKE MECHANISM.

pplication 'i'ied April ii, 191%.

To all wwm concern:

Be it known that we, JAMES Riciiiiiio SLOAN, HOWARD F. Pizzini', unil ,lim Y. Goon- MAN, citizens of tlie United States, unil residents of Altoonin in tlie Countj,v oi Blair and State of Pennsylvania, lieve jointl)v invented :in Electropneunnitie Brake ifieelninisni, of which the follow' ig is ii Specification.

Qui' invention is an inipiovetl electroqiiienn nizitic brake nieoliiinisin ellicient in character, simple in Construction, unil simple in op eration, which effects the following desidemita:

The brakes :ire operntecl iii the iininnei 'ith e. nnennizitie system, of ii Simple` inexpensive intl easily operated electric .system requiring tlie nSe of but i single trein wire without Special connections between the cere. tlie nir :ind current being regulated to operate tlie braken by the Seine nioi'einent.

The braken on all the ears or Si trein, ii'lietlier longr or sliorngni'e applied sinnlitiiieonsly7 thus permitting` :i stop to be nnicle in sliortertiine iintlei given cnfltions :intl iii'oiding tlie necessity for the I'nenni degree of care in applying the brakes :incl tlie usuel bnncliing tlie ears with tlie risk oit u'ieclts therefrom, the emergency zipplicetion beingr nniile Safely when traveling it ii ruine oit :speed nliicli would frequently wreck i train equipped with tlie usual pnennniiie ineclinnisni.

The breites een be released Simultaneously on :ill tlie cnrs of n trein, uitli tlie resnlting lnlvantaigre, for instance, that all. siicli cnrs wlien stiiniling on zi flown grade, commence to roll Simultaneously, lie sleek is token np gradually nml the violence is avoided nliicii zittende ilie operation oi the nenni nnen-l inaitic equipmentn'lierebj/v tlie Cere are leuscil in Succession, diie to tlie time i'etniiicil toi' tlie pneninzitic impulse to tiiii'el boel; through the train. nin-l tlie stiirtii'igr waive muy poll out n (liziw lie-fnl iieiii tlie ren? end ot' tlie tiniii.

'llie engineer or opci-:itoi on llie locomotii'e or eleeu'lieie in enabled to produce 'toute` on [lie :iiil breites ot tlie entire trein exnctly similar to tlie effects now produced by setting np tlie retaining vulves on eacli cui' of tlie tiziin.

rIlie sinne operation that coiiplee tlie sec- Spefccation of Letters Patent.

Yet-enten Get, 21%, i.

amai im. 225,860.

tions ot' tlie brake iipe in melting' np :i train Couples the sections of tiie electric mechanism, :incl the seine operation that closes the brake pipe ne :it tlie enil nl :i train to render 'lie :iii' opeiaitii'e. also grounds the electric ineelifiniein to iliivefliieif :in operative closed circuit, tlie gioniiil Con-4 nection being else opened bv tire oneiiition which opeiie the pipe. i' l The ineclizinisni inlzipfetl 'for cessii'tnllj.' for the ilii'ticnlt service ieqniieil on long freight trsiins` Since it ni'oiils tlie complication` of Coiintrnction unil tlie oneljy objectionable lii'icrencce in lie tiniee of action of tlie breites on tlic nenni-:ite care with tlie .niecliiiiiisins heretofore iieeil.

It is also adapted 'for coiixenicnt application to signaling liietn'een the enr-le ot trains, liei'inijT peculiar ziilvinitnn'ee in l-:ingr tranne, over tonnenSignaling eysteine.

lie characteristic ifentniee iniil :nli'zne tages oiLl tlic invention nre tullifliseloeefl in the it'ollou'ing` ileecriiitioii :mii tli pzinying drawings, illns'liiiiinn' cf the vni'ions torn` in ii loo eintioi'lieil.

ii tlie Winge.y fliieiire l is :i ilin i nnitie View of inecliniiisin cnilioi'li'ingj ii invention; 2 in :i noli-ei niiit *sectional View of :i 'joi'ni of electi'oqnieninni'ic inecir ziiiisin which inni be applied to ezicli cnr or trein unit; Fig. il is :i projection ot ilicennis, epring :im` electric inoior nieciinnisin illustrated in Fig'. Q; Fig. Ji in u ncctionnl View oi tlie triple 'telve n'itli its conncctioi p line'riiniinzi'tic vice' oiv nioifliiiml tlie inve v nini i '"ieeiiiiiig H549' SUC- il lll invention.

'.llie iiie .liaiiisin or tlie piirpe of i icntioi :impe to Atlic generator to e ille cir l e conductor eoiitnining e exciting' elinnt ticlil coil 8 having resp tive enfle connecte@L 'with i ilse eontluetor 3,

-L- i. 'Ui #gemeen che innige fi condncoi Si? the, coil. 1s eonnec*V f. one `i 5 ccndncoi 7 hetneen che condn n* 25 :ind he i in i i'e n'i n, 3 n n? each o me inzion. il ii e mii cec( d of he tii'ain, he hconn nu i' i scale indicating the posiions il foi he ieienee.u innningxhoidvice npphcntioin and emergency i "the bien i and C.

the inl' ihn( motor A nnd bcpninie y eflcied from he generate? 2 hy the coli i0, i; 1e condnccoiI l5 with hc min Wire ci' seche n the engine1 Thin 1'econio'ii'e enh, inn)v nee pins 'the yesise i the ground etui-n isv ninoun, iefn "ii n minne i in hay nii :is :ih he ie' E., oi' ohei'n'ise as nn Y 5 wiii indi(V Le to the en he anni-cies fion* b and n'hethei' i, the c( 'ing she nppznnus on che seveiiii cznn of ihe train opeme ehe hakefi as desired ruin unity is provided with n hein Wife oi tien wire seciqn 2() which is ieiCei-nhiy connected nt iis ends with coul heads 9* on hc hose of die i'nin king inechanisnn es' reni in he wi circuit Mound en icehiy oi: i mechanism is controlled by enich and serves to cnt. out snch mechanism when desired.

oi inool mechanism 27 tuins n jomnn-ed si afi: 28 against the action of c eoied Gering 3" Cams 30, 31 and are fixed on he si "28 and act on the respective roc or Steins 3%./ and 35, which cipi'ocne in end of the respective siniihu c hndeeL Bh and 38 of he braking unit mds having hel'e-in the ie w und and thereon 38", Sli and 235".

in 365 3i' and 38 connin'lihe epheg'ine 36C 23T" and S hin'- 1 3? and 38a which sugpoi' ,A e e nnd baotingngzunst i i i i when; he iespectii'e channeled plsiio 40. fente .Tih the atmosphere, Whiie J(he ihnijf phiced poet 371" is connecied'hy n nduit L connininir u choke m'i've del i n check vnive il, Wifi) The hi'nke cylin- LQ. A hinnch condni elli conneei's the u!V #il hein'een the check Vnive und 11e ndeA n'i'fh the chzunhei Quoi the )ic oc uni 'hive i (Fig. 4f), ihis inhei' heilig heiehy conneccd with the i he c viindei'. rlie port 86% is connected i the londniy with fhe exhaust pori. 44" of the iipie i'nive :ind the pons 37g und 23S-L' me .connected with the hinnches 46 :1nd 46" oiC :i conduit 4V which is connected through 'the condui iT @com the hi'ike pipe 23) n'ih the opening' -i-i" of he triple vulve.

The conduit 41T connins n cock 47 'Fol' cuff' 'eine' of? pneunnuic comlnunicnlion between the hizike pipe :ind the ln'uke unit. A vulve 4.743 in ihe conduit H3 :ind :1 velu cock 4:3 in the condui` i5 permit the di'conneci ion ici-oni 'hc sundnd hz'uhe euuipnun' of oui' iinnoved niecininisin. if desired 'for un i'enson.

i han when ihe hose i he nevern cni's of :i

znin cioncd und ihn CJI Laeaieo pneumatic units of the several ears, or that the usual operations for connecting the pneumatic units of the several ears also oonneet the eleetrieunits on the cars which vare coordinated with the respective pneumatie` units.

The ends of the train, as the engine eab and Caboose, may be equipped with any usual form of signaling mechanism 8 connected with the train wire, for transmitting Signals.

ln operation', an approximately constant resistance Will he maintained in the train line circuit, with a variable 'voltage for the separately excited generator 14, but which voltage is constant for any particular positionot' the brake valve, and a certain definite current will lion* in the train line, depending upon the position of the brake valve handle 13, the latter simultaneously setting the rheostat and the brake valve connected therewith in the desired definite relation, for release, running, holding, lap, service or emergency, according to the correspondino indicia R. R, L. S. and E. This current will operate Simultaneuosly and similarly the relays or motor mechanisme 27 of the respective braking units, and the motor n'ieehanismey Will turn the respective shafts/28 with the earns 30, 3l and 32 thereon, againet the act-ions ot the springs 2S)v the amount of the like movements of the several sets ot' came depending upon the current flowing. which is determined by the pofsition of the handle 13 and is shown by the indieator 17.

.llpou the movement ol' the arm ll from rei-lease to running position7 the cam 30 on the armature shaft Q8 moves the rod 33 and the Valve 33 of the cylinder 3G to the extreme poaition7 which opens the port 36, whereupon air from the reservoir 40, transmitted hy the conduits 239 and 39 to the interior of the cylinder 3G between the diaihrag'ms 3G and 36a. flows through the port 2313 and passage flo to the space between the diaphragm 3(32 and the piston 15H2 the latter ioeinj` moved thereby to bring ite channel into registration with the ports 3U" and 3o, Exhaust to the atmosphere ie thereby estalilished from, the liral-:e cylinder 42 through thc conduits and i5 which are eonnerted through the triple valve all, the lattere porta il@ and -l-lJ having been connected as a result ol' the surge of air admitted to the brake pipe :223 hy the .movementof 'the hralie valve lil? to release position.

the release, holding and lapping positioin, none of the Canis 130, 3l and 52 acts upon any of the rods 33. 3l, and 35 to operati any of the puppet valres Sil, Si, and 35, which non; close their portey 36, 3T and 338, where they are held hy the springs 36D. 37". and 38h; the Springe 36", 3T", and

38d moving the valves 3G", 3T", and 3S to .heir inner positions due to the release ol air through the passages 360, 37, and 38@ and the vents 33. 3l', and 35 now connecting them Vith the atmosphere.

In the Service position, the cam 3l moves the rod 34 with the valve 3l thereon to open the port 37, whereupon air flows from the reservoir 40 through the conduite 39 and 39h to the cylinder 37, thence through the port 37 and passage 3T to the space he.-l t-ween the diaphragm 37a and piston 3i, the latter being m'oved thereby against the aetion of the Spring 3T unt-il the channel in said piston connects the ports 3W and 37g, The reduction of air pressure in the hrake pipe resulting Yfrom the escape ot' air through the connected pipes 4G and ll to the brake cylinder causes a movement ot' the triple Yali'e'whereby communication is estahlishrd 'het-Ween the ports ld and il, permitting air to' .flow from the reservoir through the pipe 43 to the brake cylinder and apply the brakes.

In the einerg'eney operation, the lam 3L moves the rod 35 with the Valve 35 thereon to open the ports 3S, which allows air to flow from the reservoir Je() throhg'h the passages 3:3, 3S" and to the Space in the. cylinder 38 between the partition 38* and the valve 3S, the atter being moved thereby to posit-ion establishing eonnunnieation therethrough between the ports 35i and 38g. Thereby communication etsahliehed to the atmosphere from the brake pipe 23 and conduit l? through the conduite lo, and 4Gb, rl`he eoneequentv reduction in pressure in the brake pipe eli'eets the operation ot the triple ral-ue to connect th reeerioir il) with the c) index' l2 through the pasea;` ,-l-l'l-and #t3 and permit a greater i'iow oi /air `to the brake cif'linder than occurs in the service operation.

K The modified construetion illustrated in Fie. 5 comprises valve nieohanism consisting oi the eyliinler containing the channeled pieton 5l which Controls the conneetion between the conduits 45 and 52 (to atmosphere), lo and ll, and lo" and 523 (to atmosphere). The valve piston 5l is provided with a solenoid armature -l and coil in the train wire ZULior merino` such pistou against the action iu succession of the eoiled Apri Fill. 53T and 5S 'whieh are lsupported in the end of the oulinder and coinprossed hy the .hearing Iii) arri-:ul liv the solenoid core. i

ll'hen the piston is placed in position by the regulation ol the current passing through the eoil 55 to connect the ronduils lli and Sil. air escapes from the brake pipe 235 and conduit il to the atmospiwrc and the. emergency application is etleelcd.

llfhen. hy the further regulation of the current passing' through the relay or motor mechanism ojthe pieton 5l is placed in position for connecting the conduitevl] and L21 to the oyhu ier sot thereby, uit flow-@ rom thlough tho conduis y125 and cylinder f2? which oii'oos ho servico cation, the chock vulve l" pioi'ouy Verso How through the onduit il.

4 springs, ifo moves il hohu tion, and the" Lhio heus@ posi-ion. o triple vulve moi' t i 1 ai? 'through the bmah@ pipo connect ho gom-s "-l and @D so hzi when ho umu is returned, io running position on@ pison 5l coiineos 'the Coiiduis thebrako cyiudei' is ooiiiiooo. wu

The. mechanism iihlsizied; iii i* ig; 6 Compiises tho why@ ohzunii's (30 and GU ed to Couimuuiou're through ho poi't 60'. und connected with he. i'espotivo oouduis 5 ed. to communicate through 'die pom Gib 21216; connoced with tho respooivo conduits 6a und 4l, and t'ho Yah@ ohu obers SQ-imd La adapted io Communicuo through the port 62" and connoctod with ho yospociiiifo ooi;- duits 4G" au@ (32.

Solenoid coils zml (E5` iu fha ziiii position, neroasad c irren-'f '-1 h 1 imm wife 20, ho'iolozaso v meth und. the service valve (341D iemaiiis poi'nuttmg,escapo of un' suh 'ioni io servico movomen if the tigie valve "eizizuiiiiig' dosed.

h@ brake hanio is moved u L i j to colonos gogiioiu the sui-go of to 'the broke coiiiiiiuiil witlof oob? and iesistoiico ,ric circuit hrough the he miv@ 63D Tomah S Ciosmh out l me h zake haiidio is moved .o\ ho Tunning; posi ion. ui curentis admi* j io ho conduotoi Z0 md tho rohease mi is oponofh *die wives 61u) :uu/ Sb remaining Closed. Communicaion is now established hotwoen sho brake c i'hndoi and the mosphero hlough he connected passages i: 25, so, Gob, 0 a md so.

in the pipe muy ho ogame@y a piaon vuivo which uuikos und naealeo erated by current flowing from said generator through. said Wire to ground.

ln an electro-pneumatic brake mechanism, the combination with a train pipeand several units each comprisingvalve mechanism, auxiliary reservoir and brake cylinder connected together and to the train pipe, of valve mechanisms connected with the respective units for effecting the release, service applicationv and emergency application ot' the' corresponding brakes. a generator, a train ivire havingf separable sections connecting said generator to ground, and means in the respective sections operated by currentd Wing in said Wire for simultaneously opera ng said valve mechanisms last named.

in an electro-pneumatic brake mechanism, the combination with a train pipe hava plurality ot' separable sections and a. plurality of braking units each comprising a triple valve, an auxiliary reservoir and a brake cylinder connected together and to one of said sections. ot' pneumatic mechanisms connected -u'ith the triple valves, auxiliary reservoirs and brake cylinders ot the respective units. and electrical mechanism comprising a train Wire having separable sections corresponding to the train pipe secltions and means operated by current flowing through the respective train Wire sections for operating said pneumatic mechanisms.

4. ln an electro-pneumatic brake mechanism. the combination with the train pipe, the engineers valve for controlling the air therein.,v and pneumatic means connected with said pipe for operating the brakes. ot electrical mechanism for controlling said mea-ns, saidelectrical mechanism comprising a generator, a train Wire in circuit with said generator', means operated by said valve tor regulating the voltage from said generator through said Wire, and means 'for regulating the amperage in said wire.

5. lin an electro-pneumatic brake mechanism, the combination with the train pipe comprising sections having coupling heads tor connecting them, a Yalve tor controlling the air in said pipe and pneumatic means connected with the respective sections t'or operating the brakes, ot a train wire having .sections electrically connected through said heads. a gcncratir connected in circuit with said Wire, means for regulating thc-current discharged by'said generator through said wire. and. electric motor mechanism ope 'ated by current in said Wire for operating' the several pneumatic means.

C. ln an electro-pneumatic brake mechanism, the combination with the train pipe comprising sections having coupling heads t'or connecting them. a valve ior controlling the air in said pipe and pneumatic mechanisms connected with the respective sections toroperating the brakes, ot' a train Wire having sections electrically connected bysaid heads, a generator connected in circuitwith said ivire, a rheostat operated by said valve for regulating the voltage delivered by said generator through said Wire, means for regulating the amperage flowing through said ivire, and electric motor mechanisms operated by current in said .vire -for operating the respective pneumatic mechanisms.

i'. In an electro-pneumatic brake mechanism, the combination with the train pipe comprisingsections having coupling means t'or connecting them, a train Wire coinprisin r sections electricallyv connected through sai connected heads, pneumatic mechanisms connected with train pipe sections aforesaid for operating several sets ot` brakes, electrical mechanisms comprising motor mechanisms connected with train wire sections aforesaid tor operating pneumatic mechanisms aforesaid, and means comprising switches for grounding said train wire sections.

8. In an electro-pneumatic brake mecha-A nism, the combination of the train pipe the triple valve connected therewith, and the auxiliary reservoir and brake cylinder counected with the triple valve, of auxiliary means-comprising a conduit for connecting the train pipe with the atmosphere, a couduitl t'or connecting the train pipe With the cylinder, valve mechanism for controlling said conduits, and electrical mechanism tor controlling Said valve mechanism.

9. In an electro-pneumatic brake mechanism, the train pipe provided with a controlling valve, the triple valve connected 100 with the pipe, and the auxiliary reservoir and brake cylinder connected with the triple valve, ot auxiliary means for connecting the train pipe with the atmosphere and the brake cylinder to effect the emergency and 105 service application, valve mechanism tor controlling said auxiliary means, and electrical mechanism operated by said controlling valve tor operating said valve mechamsm.

il). In an electro-pneumatic brake mechanism, the combination with the train pipe provided with the controlling valve, the triple valve connected with the pipe, and the auxiliary reservoir and brake cylinder con- 115 nccted with the triple valve, of auxiliary means t'or connecting the train pipe with the atmosphere to effect the emergency operation, t'or connecting the train pipe with thc cylinder to ctl'ect the service application, 120 and 'tor connecting the cylinder with the atmosphere to etlect. the release, and electrical means comprising motor mechanism operating' under control ol said valve rstnamcd lior effecting the emergency application, 125 service application Iand release.

lll. n an elcctro-pneumatic'brake mechanism, the combination with an electric generator, a second electric generator operated under control ot Said generator first named, 130

like meel auml, u, fz in wir@ a generator*Secund named? ug mechanism, mcm m Nudel' vonl'O-of sul@ Ci ih@ zufuu Uf will brak' 1. mi means 'fo -1 uuemu euhctrc n: VOD- mzm rd hi 112. The ly m ums tu "011 und n feg: 

